Google Book Mashup

Joho the Blog provides a link to Inside Google Book Search. One of the things that the Google team is starting to make available is an animation of the

the static information found in books by organizing a sample of locations from them on an interactive Google Map, with snippets of text from the book, and links to the actual pages where the locations are mentioned. When our automatic techniques determine that there are a good number of quality locations from a book to show you, you'll find a map on the "About this book" page.

For example, here is the page for Around the World in 80 Days by Jules Verne.

Interesting, but of course, only for those books which involve some travel or change of location.